#include "apue.h"
#include <sys/wait.h>
//test commit

static void sig_int(int);

int main(void )
{
	char buf[MAXLINE];
	pid_t pid;
	int status;

	if(signal(SIGINT, sig_int) == SIG_ERR)
		err_sys("signal error");

    printf("%% ");
	while(fgets(buf, MAXLINE, stdin) != NULL ) {
		if(buf[strlen(buf) -1 ] == '\n' )
			buf[strlen(buf) - 1 ] = 0;

		if((pid = fork()) < 0) {
	        err_sys("fork error");			
		}else if(pid == 0){
			execlp(buf,buf,(char*)0);
			err_ret("couldn't excute : %s ",buf);
			exit(127);
		}

		if((pid = waitpid(pid,&status, 0 ))<0)
		{
			err_sys("waitpid error");
		}
		printf("%% ");

	}
	exit(0);
}

void sig_int(int signo)
{
	printf("interrupt\n%% ");
}
